(For a Reuters live blog on U.S., UK and European stock markets, click LIVE/ or type LIVE/ in a news window) April 21 (Reuters) - European stocks rebounded on Wednesday after their worst selloff this year as optimism about a strong earnings season countered worries about a rapid rise in COVID-19 cases in some countries. Tech stocks were the top gainers, up almost 2%, with semiconductor equipment maker ASML jumping 5.4% after it raised its full-year sales forecast, citing strong demand amid a global computer chip shortage. Smaller rival ASM International rose 4.2% on forecasting a rise in second-quarter orders. The world’s second-largest brewer Heineken NV gained 4.2% after it reported a better than expected quarterly sales. Italian football club Juventus slumped 10% after the breakaway European Super League was rocked by the departure of its six English clubs. The pan-European STOXX 600 index rose 0.6% in early trading after a blistering seven-week rally ran into profit-taking on Tuesday. The German DAX rose 0.2%, while France’s CAC 40 was up 0.5% and UK’s FTSE added 0.4%. (Reporting by Sruthi Shankar in Bengaluru; Editing by Shounak Dasgupta)